Emerson Rosemount - Page 221

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Reference Manual
00809-0100-4021, Rev GC
Appendix A: Reference Data
April 2014
Reference data
Custom configuration
The 3144P transmitter can be ordered with custom configuration. The table below lists the
requirements necessary to specify a custom configuration.
(1)CDS required
To custom configure the 3144P with the dual-sensor option transmitter for one of the
applications described below, indicate the appropriate option code in the model number. If a
sensor type is not specified, the transmitter will be configured for two 3-wire Pt 100 ( =
0.00385) RTDs if any of the following option codes are selected.
Option code Requirements/specifications
C1:
Factory Data
(1)
Date: day/month/year
Descriptor: 32 alphanumeric character
Message: 32 alphanumeric character
Custom Alarm Levels can be specified for configuration at the factory.
C2:
Transmitter-Sensor
Matching
The transmitters are designed to accept Callendar-van Dusen constants from
a calibrated RTD schedule and generate a custom curve to match any specific
sensor curve. Specify a Series 68, 65, or 78 RTD sensor on the order with a
special characterization curve (V or X8Q4 option). These constants will be
programmed into the transmitter with this option.
C4:
Five Point Calibration
Will include five-point calibration at 0, 25, 50, 75, and 100% analog
and digital output points.
Use with option code Q4 to obtain a Calibration Certificate.
C7:
Special Sensor
Used for non-standard sensor, adding a special sensor or expanding input.
Customer must supply the non-standard sensor information. Additional
special curve will be added to sensor curve input choices.
A1: NAMUR-
Compliant, high alarm
Analog output levels compliant with NAMUR. Alarm is set to fail high.
CN: NAMUR-
Compliant, low alarm
Analog output levels compliant with NAMUR. Alarm is set to fail low.
C8: Low Alarm Analog output levels compliant with Rosemount standard. Alarm is set to fail
low.
F5: 50 Hz Line Filter Calibrated to 50 Hz line voltage filter.
Option Code U1
Hot Backup configuration
Primary Usage Primary usage sets the transmitter to automatically use sensor 2 as the
primary input if sensor 1 fails. Switching from sensor 1 to sensor 2 is
accomplished without any effect on the analog signal.
Primary Variable Sensor 1
Secondary Variable Sensor 2
Tertiary Variable Terminal (Body) Temperature
Quaternary Variable Not Used